Four Walls radical 'fabric first' retrofit project - case study:

Triple glazed timber windows & doors Ian commented: “We wanted to improve the thermal performance with triple glazed windows and approached a number of companies for quotes. We looked at a range of windows and Green Building Store’s PERFORMANCE range was by far the most cost-effective of all the quotes we received. They were of a high quality and the U value fitted the bill for the level of retrofit that we were aiming for. Had we wanted to go down the Passivhaus route we maybe might have chosen windows with insulated frames, but the PERFORMANCE range suited the needs of the project perfectly. We have been very happy with the windows. There are no draughts and they have contributed to increased comfort levels considerably. The thermal images of the house, before and after the retrofit, show how well the windows are performing compared to the original windows. The aesthetic...